Patents by Inventor Norbert G. Weisbrod

Norbert G. Weisbrod has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Chamber doctor blade assembly
    Patent number: 5628250
    Abstract: A chamber doctor blade assembly includes axially spaced lateral cheeks that seal the ends of the ink reservoir. Each of these lateral cheeks has a sealing face that conforms to the curvature of the screen roller with which the chamber doctor blade is used. These sealing faces are provided with lubricant reservoirs. The lateral faces also have leading edges bent or flared out to form strippers which remove excess beads of ink from the screen roller.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 13, 1997
    Assignee: Koenig & Bauer-Albert Aktiengesellschaft
    Inventor: Norbert G. Weisbrod
  • Short inking apparatus for a rotary press
    Patent number: 5341733
    Abstract: A short inking unit for an offset rotary printing unit that has a dampening fluid system includes at least a first additional pair of rollers. A first roller of this first additional roller pair contacts a forme cylinder and a second roller of this first additional roller pair engages the ink forme cylinder. Second and third additional roller pairs may be used. Each additional roller pair is positioned either on the dampening system side of the printing unit or on the side of the printing unit opposite the dampening system.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: August 30, 1994
    Assignee: Albert Frankenthal Aktiengesellschaft
    Inventor: Norbert G. Weisbrod